This journal is © The Royal Society of Chemistry 2013 J. Name ., 2013, 00 , 1-3 | 1 Supplementary information Synthesis of nanostructured chitin-hematite materials under extreme biomimetic conditions Marcin Wysokowski, a Mykhailo Motylenko, b Juliane Walter ,c Grzegorz Lota, d Jarosław Wojciechowski, d Hartmut Stöcker, c Roberta Galli, e Allison L. Stelling, f Cameliu Himcinschi, g Elke Niederschlag, h Enrico Langer, i Vasilii V. Bazhenov, c Tomasz Szatkowski, a Jakub Zdarta, a Iaroslav Pertenko, c Zoran Kljajić, j Tilmann Leisegang, k Serguei L. Molodtsov, c,l Dirk C. Meyer, c Teofil Jesionowski, a and Hermann Ehrlich* c a Institute of Chemical Technology and Engineering, Poznan University of Technology, 60965 Poznan, Poland b Institute of Materials Science, TU Bergakademie Freiberg, 09599 Freiberg, Germany c Institute of Experimental Physics, TU Bergakademie Freiberg, Leipziger 23, 09599 Freiberg, Germany; Tel: 0049393731392867; E-mail: [email protected] d Institute of Chemistry and Technical Electrochemistry, Faculty of Chemical Technology, Poznan University of Technology, 60965 Poznan, Poland e Faculty of Medicine Carl Gustav Carus, Department of Anesthesiology and Intensive Care Medicine, Clinical Sensoring and Monitoring, Technische Universität Dresden, 01069 Dresden, Germany f Department of Mechanical Engineering and Materials Science, Duke University, 27708 Durham, NC, USA g Institute of Theoretical Physics, TU Bergakademie Freiberg, Leipziger 23, 09599 Freiberg, Germany h Insitut für NE-Metallurgie und Reinstoffe, TU Bergakademie Freiberg, Leipziger Str. 34, 09599 Freiberg, Germany i Institut für Oberflächenphysik und Mikrostrukturphysik, TU Dresden 01062 Dresden j Institute of Marine Biology, University of Montenegro, 85330 Kotor, Montenegro k Fraunhofer-Technologiezentrum Halbleitermaterialien THM, Am St.-Niclas-Schacht 13, 09599 Freiberg, Germany l European X-Ray Free-Electron Laser Facility (XFEL) GmbH, 22761 Hamburg Materials and methods Scanning electron microscopy (SEM) The surface morphology and microstructure of the Fe 2 O 3 nanoparticles were examined on the basis of the SEM images recorded on Ultra 55 (Carl Zeiss AG, Germany). Before testing, the samples were coated with carbon over a period of 5 s for 1 min using an Edwards S150B sputter coater. Raman spectroscopy The Raman measurements were performed using an LabRam HR 800 spectrometer (from Horiba Jobin Yvon) equipped with a 600 grooves/mm grating and a Peltier cooled CCD detector. The spectra were measured in the backscattering configuration with the laser light focused on the samples and collected through a 100x objective of an Olympus microscope. For excitation the 785 nm line of a diode laser was used. The laser power was chosen in order to avoid the damage to the sample surface during the measurements. The power was set at 1.2 mW for the measurement Electronic Supplementary Material (ESI) for RSC Advances. This journal is © The Royal Society of Chemistry 2014